--- product_id: 26348388 title: "Muffler 4in Inlet/Outlet Quiet Tone" brand: "mbrp" price: "€ 691.38" currency: EUR in_stock: true reviews_count: 13 category: "Mbrp" url: https://www.desertcart.fr/products/26348388-muffler-4in-inlet-outlet-quiet-tone store_origin: FR region: France --- # Quiet Tone tech for cab comfort 4-inch inlet/outlet precision fit Aluminized steel durable build Muffler 4in Inlet/Outlet Quiet Tone **Brand:** mbrp **Price:** € 691.38 **Availability:** ✅ In Stock ## Summary > 🔇 Silence the noise, amplify the drive — tow smarter, not louder! ## Quick Answers - **What is this?** Muffler 4in Inlet/Outlet Quiet Tone by mbrp - **How much does it cost?** € 691.38 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/26348388-muffler-4in-inlet-outlet-quiet-tone) ## Best For - mbrp enthusiasts ## Why This Product - Trusted mbrp brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Non-Directional Design:** Versatile installation with consistent performance on either side. - • **Precision 4-Inch Inlet & Outlet:** Seamless fit for optimized exhaust flow and performance. - • **Quiet Tone Dual Core Technology:** Experience a smoother, quieter ride with superior sound suppression inside the cab. - • **30-Inch Length for Maximum Efficiency:** Designed to balance noise reduction and exhaust flow perfectly for towing and daily driving. - • **Durable Aluminized Steel Construction:** Built to withstand harsh conditions and resist corrosion for long-lasting reliability. ## Overview The MBRP Quiet Tone Diesel Muffler features a 4-inch inlet and outlet with a 30-inch overall length, crafted from durable aluminized steel. Its dual core technology ensures optimal exhaust flow while significantly reducing cab noise, making it ideal for over-the-road towing and daily driving. This non-directional, round muffler delivers a smooth engine sound without sacrificing tone, enhancing your driving experience with lasting performance. ## Description The quiet tone muffler is made of Aluminized construction. Dual core technology provides optimal flow in conjunction with superior sound suppression. Perfect for over the road towing applications as cab noise is greatly reduced. Review: Diesel muffler - Does a good job sound is very nice in cab and still has good tone outside of truck. Review: Wow! Should have done it a long time ago. - My 2006 Dodge 5.9 Cummins has had 4 inch straight pipe on it for the last few years. It's not my daily driver. Kinda fun around town, but after 2 hours of towing heavy trailers it gets really rough on the ear drums, so I bought my truck the MBRP for Christmas. Wow what a difference. First thing I noticed is how much smoother the engine sounds. It's across the board a more pleasant experience: In the cab, standing next to it while idling, windows down while on the throttle next to block wall... I'd say it's about 3-3/8" clear ID through bore. In addition to that arrayed around the ID are 3/8" tall nozzles that channel some of the gas into the expansion chamber. Effective flow area is that of about a 4 inch pipe. The picture makes it appear that each row is taping down to a smaller ID, but this is due to foreshortening of the image. Each successive row appears to be the same final inside diameter as the first row. The muffler is non-directional (same on both sides). 30 inch OAL, and 6 OD of the quieting chamber. Also the chamber is hollow. There is no noise damping media inside it. Still sounds and flows WAY better than a stock 5.9 Cummins ## Features - Material: Aluminized Steel - Inlet diameter: 4 inch, Outlet diameter: 4 inch, Overall length: 30 inch - Shape: Round, Outlet: Single Center Outlet - Quiet Tone Diesel Muffler ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004XHR914 | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #935,733 in Automotive ( See Top 100 in Automotive ) #285 in Automotive Performance Exhaust Mufflers #19,915 in Automotive Emission & Exhaust Products | | Brand | MBRP | | Brand Name | MBRP | | Compatible with Vehicle Type | Car | | Customer Reviews | 4.5 out of 5 stars 168 Reviews | | Global Trade Identification Number | 00882663113019 | | Included Components | Quiet Tone Diesel Muffler | | Inlet Connection Size | 4 inches | | Item Dimensions | 42 x 8 x 8 inches | | Item Type Name | Quiet Tone Diesel Muffler | | Item Weight | 14.8 pounds | | Item dimensions L x W x H | 42 x 8 x 8 inches | | Manufacturer | MBRP | | Manufacturer Part Number | M1004A | | Manufacturer Warranty Description | Product warranty applies only if sold by an authorized dealer. Check the MBRP website for a list of unauthorized resellers and further details. | | Material | Alloy Steel | | Material Type | Alloy Steel | | Model Number | M1004A | | Number of Items | 1 | | OEM Equivalent Part Number | M1004A | | Outlet Connection Size | 4 inches | | UPC | 882663113019 | | Unit Count | 1 Count | | Vehicle Service Type | Car | ## Images ![Muffler 4in Inlet/Outlet Quiet Tone - Image 1](https://m.media-amazon.com/images/I/41vLJYlyp8L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Diesel muffler *by T***T on April 10, 2026* Does a good job sound is very nice in cab and still has good tone outside of truck. ### ⭐⭐⭐⭐⭐ Wow! Should have done it a long time ago. *by C***D on December 21, 2020* My 2006 Dodge 5.9 Cummins has had 4 inch straight pipe on it for the last few years. It's not my daily driver. Kinda fun around town, but after 2 hours of towing heavy trailers it gets really rough on the ear drums, so I bought my truck the MBRP for Christmas. Wow what a difference. First thing I noticed is how much smoother the engine sounds. It's across the board a more pleasant experience: In the cab, standing next to it while idling, windows down while on the throttle next to block wall... I'd say it's about 3-3/8" clear ID through bore. In addition to that arrayed around the ID are 3/8" tall nozzles that channel some of the gas into the expansion chamber. Effective flow area is that of about a 4 inch pipe. The picture makes it appear that each row is taping down to a smaller ID, but this is due to foreshortening of the image. Each successive row appears to be the same final inside diameter as the first row. The muffler is non-directional (same on both sides). 30 inch OAL, and 6 OD of the quieting chamber. Also the chamber is hollow. There is no noise damping media inside it. Still sounds and flows WAY better than a stock 5.9 Cummins ### ⭐⭐⭐⭐⭐ Good muffler *by J***N on February 4, 2019* Straight piped my 2014 6.7 and it sounded badass, but just became too loud. This gave it a nice tone. When you really get on it, it still has a nice loud tone to it but nothing over the top like straight pipe. Direct fit in my 2014 dodge flow pro exhaust. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.fr/products/26348388-muffler-4in-inlet-outlet-quiet-tone](https://www.desertcart.fr/products/26348388-muffler-4in-inlet-outlet-quiet-tone) --- *Product available on Desertcart France* *Store origin: FR* *Last updated: 2026-09-25*